If Ted thinks this is mean, he should hear about the many, many ways Sherlock woke Joan up, via tortoise, single stick, morse code, bugle, police radio...

"Oh," she says with a smile, picking a song and holding it out to Ted.

Who Let the Dogs Out.

"We don't want it to be too loud so we don't disturb other patients, so if you can put this by his head and hit play..."